Optical Connection Module Horizontal Zone Layout

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Solution Overview

Problem

Existing optical connection modules in FTTH networks face issues with jumper congestion, difficult access to connectors, and inadequate protection against dust, particularly due to the overlapping configuration of connection and routing zones.

Innovation Solution

The optical connection module features distinct horizontal zones for connection and routing of optical fibers, with connectors aligned in the same vertical plane for easy access, and a single hinge-operated flap to cover both zones, reducing the module's depth and enhancing accessibility and protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the connection zone and routing zone are arranged vertically one behind the other, then the module structure is compact, but the connectors become difficult to access and require passing through the routing area

Engineering Contradiction:

ImproveAccessibility of connectorsVSAvoidModule structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent transitions from a vertical stacking arrangement (one zone behind the other) to a horizontal side-by-side arrangement of the connection zone and routing zone. This dimensional change allows connectors to be accessed directly from the front without passing through the routing area, resolving the accessibility issue while maintaining a compact module structure through efficient spatial organization.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Reliability

If multiple separate doors are used to secure connection and routing zones, then each zone is protected, but the module requires multiple locks and increases in complexity

Engineering Contradiction:

ImproveProtection of connection zonesVSAvoidNumber of locks and doors

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the protection of both the connection zone and routing zone into a single door assembly that secures both areas simultaneously. This single door requires only one lock mechanism, yet maintains comprehensive protection for all internal components, thereby reducing mechanical complexity while preserving security and reliability.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of operation

If connectors are arranged in different planes, then routing flexibility is improved, but user access to connectors becomes difficult

Engineering Contradiction:

ImproveUser access to connectorsVSAvoidRouting flexibility

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent positions all connectors in the same vertical plane that is parallel to the front face of the module, creating a uniform access plane that facilitates easy user interaction. This localized arrangement of connectors in a single plane maintains routing flexibility through the horizontal routing zone while ensuring all connectors are equally accessible from the front, resolving the contradiction between accessibility and routing adaptability.

Inventive Principle:

Principle #3Local quality

Data Source

PatentEP2755071B3Optical connection module

Publication Date: 2023.08.16 NEXANS SA

Figure 1~3
Figure 4

AI summary

The module (1) has a module body containing a connection zone (2) provided with connectors (21) to connect optical fibers to connection cords that connect the module to other optical connection modules. A cabling zone (3) allows a vertical passage of the cords through the module. The zones are two distinct and horizontally aligned zones. The connectors are arranged on a vertical wall (16) that is parallel to an alignment direction of the zones, so that a user directly accesses the connectors without passing through the cabling zone.